Patents Represented by Attorney Thomas P. O'Day
  • Patent number: 4743350
    Abstract: An electrolytic membrane cell for the electrochemical production of an alkali metal hydrosulfite by the reduction of an alkali metal biosulfite component of a circulated aqueous catholyte solution is provided. The cell utilizes an improved extended surface multipass porous cathode, an improved catholyte flow path and a hydrophilically treated separator mesh that separates the cation exchange membrane from the anode.
    Type: Grant
    Filed: December 19, 1986
    Date of Patent: May 10, 1988
    Assignee: Olin Corporation
    Inventors: David W. Cawlfield, James M. Ford, Kenneth E. Woodard, Jr.
  • Patent number: 4740287
    Abstract: An improved multiple layered porous electrode for use in an electrochemical membrane cell is provided having a first perforated support layer, a second layer of fibers, a third layer of fibers less dense than the second layer and a fourth layer of meshed wire cloth.
    Type: Grant
    Filed: April 1, 1987
    Date of Patent: April 26, 1988
    Assignee: Olin Corporation
    Inventor: David W. Cawlfield
  • Patent number: 4736087
    Abstract: An improved plasma stripping apparatus with external electrodes is provided wherein the cathode has multiple small area contact points adjacent and in close proximity to or uniformly touching the reactor chamber to cause areas of high r.f. field densities that enhance the gas breakdown in the plasma to obtain high rate film removal.
    Type: Grant
    Filed: January 12, 1987
    Date of Patent: April 5, 1988
    Assignee: Olin Corporation
    Inventors: Michael G. Whitlock, Kevin C. Lettire
  • Patent number: 4728454
    Abstract: A rapidly dissolving granular hydrated calcium hypochlorite product is comprised of hydrated calcium hypochlorite particles having at least 95 percent of the particles within a size range of from about 300 to about 850 microns. The product has a packed bulk density of less than about 1.05 grams per cubic centimeter. When dispersed on the surface of a body of water, such as a swimming pool, at least 3 feet deep, about 70 weight percent or higher of the particles dissolve within one minute.
    Type: Grant
    Filed: August 8, 1986
    Date of Patent: March 1, 1988
    Assignee: Olin Corporation
    Inventors: David C. Dodge, David F. Knoop, George T. Thomas, James P. Newman
  • Patent number: 4725684
    Abstract: A process for producing urea cyanurate which comprises reacting an aqueous solution of urea with cyanuric acid at a temperature below the melting point of urea provides reaction conditions which minimize urea decomposition and are energy efficient. The urea cyanurate product can be used directly in the manufacture of cyanuric acid in a process which minimizes the build up of scale on the reactor walls. The cyanuric acid product has reduced concentrations of by-products such as ammelide and ammeline.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: February 16, 1988
    Assignee: Olin Corporation
    Inventors: Robert W. Mason, Thomas C. Parker
  • Patent number: 4724005
    Abstract: A process for electroplating a conductive metal layer to the surface of a non-conductive material which comprises:(a) preparing a liquid dispersion of carbon black comprised of:(1) carbon black particles having an average particle diameter of less than about 3.0 microns in said dispersion;(2) an effective dispersing amount of a surfactant which is compatible with said carbon black; and(3) liquid dispersing medium, wherein the amount of carbon black is sufficient to coat substantially all of said non-conducting surfaces and is less than about 4% by weight of said liquid dispersion;(b) applying said liquid dispersion to the surface of the non-conducting material;(c) separating substantially all of said liquid dispersing medium from said carbon black particles, whereby said particles are deposited on said non-conductive surface in a substantially continuous layer; and(d) electroplating a substantially continuous conductive metal layer over the deposited carbon black layer and said non-conductive surface.
    Type: Grant
    Filed: May 1, 1986
    Date of Patent: February 9, 1988
    Assignee: Olin Hunt Specialty Products Inc.
    Inventors: Karl L. Minten, Galina Pismennaya
  • Patent number: 4720377
    Abstract: This invention relates generally to a method for producing nitrous oxide, and more specifically, to a method of producing nitrous oxide by reacting ammonia with at least one molten nitrate salt of an alkaline earth metal.
    Type: Grant
    Filed: June 3, 1987
    Date of Patent: January 19, 1988
    Assignee: Olin Corporation
    Inventor: B. Timothy Pennington
  • Patent number: 4718993
    Abstract: An improvement to the process for electroplating the walls of through holes in a laminated printed wiring board which comprises:(a) contacting said printed wiring board with an aqueous alkaline silicate solution, followed by;(b) contacting said printed wiring board with a dispersion of carbon black comprising:(1) carbon black particles having an average particle diameter of less than about 3.
    Type: Grant
    Filed: May 29, 1987
    Date of Patent: January 12, 1988
    Assignee: Olin Hunt Specialty Products Inc.
    Inventors: Glenn W. Cupta, Anthony M. Piano
  • Patent number: 4714534
    Abstract: Disclosed is an electrolytic cell used to produce dilute quantities of a halogen solution from water containing dilute quantities of salt to disinfect and sanitize the water, the cell further employs monopolar electrodes of trapezoidal shape and an electrode separating plates that ensures proper alignment and equal separation of the electrode plates during operation.
    Type: Grant
    Filed: June 20, 1986
    Date of Patent: December 22, 1987
    Assignee: Olin Corporation
    Inventors: David L. Fair, Robert A. Dean, Arlon G. Sangster
  • Patent number: 4711836
    Abstract: Disclosed is an aqueous developing solution containing a quaternary ammonium hydroxide developing agent, and as an additive an effective amount of a select compound which is either 1,3,5-trihydroxy benzene, 4-methylesculetin or a novolak-type resin. The aqueous developing solution is particularly useful in developing an imagewise-exposed layer of a positive-working photoresist composition containing a novolak-type resin and a photosensitive agent. In such application, it has been found that the developing solution more effectively removes the exposed portions of the photoresist composition without leaving a residue of exposed photoresist composition at the interface of the edges of the unexposed portions of the photoresist composition and the oxidized silicon substrate.
    Type: Grant
    Filed: August 11, 1986
    Date of Patent: December 8, 1987
    Assignee: Olin Hunt Specialty Products, Inc.
    Inventor: Lawrence Ferreira
  • Patent number: 4708292
    Abstract: In a plural component foam dispensing apparatus there is provided an easily removable and replaceable combination nozzle-mixing chamber that is formed of a low friction, slightly deformable material with a first front contact surface against which is applied force to load the second rear contact surface against the contact surface of the nozzle seat to securely hold the combination nozzle-mixing chamber in place. The core of the combination nozzle-mixing chamber is not axially restrained on each end.
    Type: Grant
    Filed: June 5, 1985
    Date of Patent: November 24, 1987
    Assignee: Olin Corporation
    Inventor: Robert C. Gammons
  • Patent number: 4706985
    Abstract: In an alpine snow ski having a fiberglass sandwich construction there is provided at least one high strength fiber reinforcing rod positioned generally horizontally within the ski's cross-section extending forwardly from the binding area to the shovel contact point and rearwardly from the binding area to the tail contact point above or in the plane of the compression carrying laminate to increase the flexural response and compressive structural strength of the ski.
    Type: Grant
    Filed: June 28, 1985
    Date of Patent: November 17, 1987
    Assignee: TriStar Sports Inc.
    Inventor: Franklin D. Meatto
  • Patent number: 4705696
    Abstract: An electrostatic charge is selectively applied to the anodized surface of an anodized aluminum plate in a predetermined pattern corresponding to the image to be printed, a liquid toner is applied to the charged portions of the anodized surface and the toner is fixed to the anodized surface to provide an imaged lithographic printing plate. The printing plate made by the method may be used to make lithographic prints by applying printing ink to the imaged portions of the plate and transferring the printing ink from the lithographic printing plate to a substrate.
    Type: Grant
    Filed: September 27, 1984
    Date of Patent: November 10, 1987
    Assignee: Olin Hunt Specialty Products Inc.
    Inventors: Peter J. Calabrese, Galina Pismennaya
  • Patent number: 4700967
    Abstract: In an alpine snow ski there is provided an asymmetric design in which the inside edge of the ski has a large sidecut with a short radius of curvature such that the centerline of a skier's foot when positioned in mounting plates on top of the ski is between about 5 and about 20 millimeters to the interior of the ski's inside edge and the mounting plates overhang the inside edge of the ski. The mounting plates are adjustable transversely to the inside edge of the ski and the outside edge of the ski is straight.
    Type: Grant
    Filed: March 6, 1986
    Date of Patent: October 20, 1987
    Assignee: TriStar Sports Inc.
    Inventors: Franklin D. Meatto, Edward D. Pilpel
  • Patent number: 4699931
    Abstract: Oxazolidone-containing isocyanurate foams characterized by thermal stability at a temperature of about 140.degree. C. or higher. These foams are produced by reacting at least one polyisocyanate with at least one polyepoxide in the presence of catalyst, surfactant, and blowing agent.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: October 13, 1987
    Assignee: Olin Corporation
    Inventors: Stephen Fuzesi, Robert W. Brown
  • Patent number: 4699932
    Abstract: The present invention relates generally to open-cell polyurethane foams and, more specifically, to such foams which are halogenated-hydrocarbon blown and are essentially urea-free, together with a composition and method for the fabrication thereof.
    Type: Grant
    Filed: September 12, 1986
    Date of Patent: October 13, 1987
    Assignee: Olin Corporation
    Inventors: Stephen Fuzesi, Gail H. Clarke
  • Patent number: 4695359
    Abstract: An electrolytic cell is provided with electrodes which are inserted within electrode frames with internal flow conduits and which are formed by metallurgical bonding, and the use of adhesives and an electrical resistance lowering conductive compound between contact surfaces.
    Type: Grant
    Filed: January 2, 1986
    Date of Patent: September 22, 1987
    Assignee: Olin Corporation
    Inventors: Kenneth E. Woodard, Jr., Robert A. Dean, David L. Fair, Julius C. Fister, Jr.
  • Patent number: 4695596
    Abstract: A stable, low viscosity polymer/polyisocyanate dispersion wherein the polymer is produced by polymerizing an ethylenically unsaturated macromolecular monomer with another ethylenically unsaturated monomer, together with a polyurethane foam, elastomer, adhesive, sealant, or coating produced therefrom and a method for fabricating the foam.
    Type: Grant
    Filed: August 28, 1986
    Date of Patent: September 22, 1987
    Assignee: Olin Corporation
    Inventor: Phillip T. Berkowitz
  • Patent number: 4688821
    Abstract: In an alpine snow ski there is provided an asymmetric design in which the inside edge of the ski has a large sidecut with a short radius of curvature such that the centerline of a skier's foot when positioned in mounting plates on top of the ski is between about 5 and about 20 millimeters to the interior of the ski's inside edge and the mounting plates overhang the inside edge of the ski. The mounting plates are adjustable transversely to the inside edge of the ski and the outside edge of the ski is straight.
    Type: Grant
    Filed: December 13, 1985
    Date of Patent: August 25, 1987
    Assignee: TriStar Sports, Inc.
    Inventors: Franklin D. Meatto, Edward D. Pilpel
  • Patent number: 4689209
    Abstract: This invention relates generally to a method for producing nitrous oxide, and more specifically, to a method for producing nitrous oxide by reacting ammonia with at least one molten nitrate salt.
    Type: Grant
    Filed: July 11, 1986
    Date of Patent: August 25, 1987
    Assignee: Olin Corporation
    Inventor: B. Timothy Pennington